Bandage your balls and cock. You have to bind your soft (or semi-hard) penis. Take a sock and place a stone in it. Or your phone or your computer mouse. That's enough, but you can use a hairbrush and hammer (or spoon) for a change. If you have nothing near, use your palm and fist. Let's make scrambled eggs. Now make a chop for me :) In the end I won't let you cum, but you can still do it:)